HTTP error when uploading PDF file

Hi Milan,

Sorry for the late reply.

WordPress is perfectly able to upload PDFs. Please post a screenshot with the error and let me know what is the list of your active plugins.

-Nadia

Hi Nadia,

web site is currently in development phase, but here’s the screenshot:

https://prntscr.com/68lq7f

In the meantime, I’ve noticed that this issue is only with new WP upload system. When I try to upload single PDF file via old upload method, file gets uploaded successfully. Problem is I really need to upload multiply PDF files because it would take ages for me to do so.

Here’s the list of current active plugins:

Akismet
Better Delete Revision
Contact Form 7
Enhanced Media Library
Event Booking Pro
LayerSlider WP
Revolution Slider
Templatera
WordPress Importer
WPBakery Visual Composer
WPML Multilingual CMS
WPML String Translation

Thanks!

Thanks Milan! Can you please try to deactivate all plugins except Enhanced Media Library and check if the problem is gone? It looks like some incompatibility issue. Also please let me know your version of WordPress and theme name.

Tried that. Same issue.

I’m using latest WP and Total Theme as framework.

OK, thanks, can you please try to activate any “default” WP theme instead of Total Theme to check if it has impact?

I have thought of that too, but theme has nothing to do with WP uploading system. Anyway, that didn’t help either.

Then, it’s most likely a server issue. Also you can conduct more researches: try other browser, device, other file type, a file with less Mb

Something like this https://revocomm.com/solving-wordpress-image-upload-http-error/ can also be helpful… as well as contacting your hosting provider.

Before I wrote anything here, I made all the research I could possibly make. This was my last hope ?? In fact, I never bother people about some issue if I didn’t already tried to fix it myself or searched for already solved solution for that issue.

You plugin was last one I installed and it’s tied up to media library, so I figured you could give me some useful advice. I’m trying to upload PDF’s that are less than 1Mb large, so I was trying with different sizes as well. Also with another type of files. Everything works except PDF files. That’s really strange, because uploader shouldn’t make difference in file type.

Last thing left for me to do is contact my provider, but I’m not sure they will be much of a use.

Thank you for your time, anyway.

Milan, I didn’t mean you bother me, it just looks like a server issue under the circumstances you described. In this case I can’t be really helpful, sorry.

WordPress by default doesn’t allow PDF’s upload. The mechanism EML uses is pretty straightforward – the upload_mimes hook (https://codex.www.ads-software.com/Plugin_API/Filter_Reference/upload_mimes). You can check it for yourself without any plugin at all – .pdf application/pdf or application/x-pdf (if you haven’t tried this before).

Try to allow uploading .exe application/x-msdownload (don’t forget to disallow it then!)

If this doesn’t work either, then your server blocks uploading of certain mime types. In this case you should definitely contact your hosting provider.

-Nadia